Excerpts from Books and Wikipedia
"Roosevelt took office as Vice President in March 1901, and he assumed the presidency at age 42 following McKinley's assassination that September; . . . He was a leader of the Progressive movement, and he championed his "Square Deal" domestic policies, promising the average citizen fairness, breaking of trusts, regulation of railroads, and pure food and drugs. He made conservation a top priority and established many new national parks, forests, and monuments intended to preserve the nation's natural resources. In foreign policy, he focused on Central America where he began construction of the Panama Canal. He expanded the Navy and sent the Great White Fleet on a world tour to project the United States' naval power around the globe. His successful efforts to broker the end of the Russo-Japanese War won him the 1906 Nobel Peace Prize. He avoided controversial tariff and money issues. He was elected to a full term in 1904 and continued to promote progressive policies, many of which were passed in Congress. He groomed his close friend William Howard Taft, and Taft won the 1908 presidential election to succeed him." [Wikipedia]